#include <iostream>

namespace ns1
{
    void func()
    {   
        std::cout << "namespace ns1 func" << std::endl;
    }
}

namespace ns2
{
    void func()
    {
        std::cout << "namespace ns2 func" << std::endl;
    }
}

void func1(){
    using std::string;
};

int main()
{
    ns1::func();
    ns2::func();

    

    
    return 0;
}